ATE393306T1 - INTERNAL COMBUSTION ENGINE WITH AN INJECTION VALVE WITH OPTIMIZED FUEL SPRAY JETS - Google Patents

INTERNAL COMBUSTION ENGINE WITH AN INJECTION VALVE WITH OPTIMIZED FUEL SPRAY JETS

Info

Publication number
ATE393306T1
ATE393306T1 AT05300798T AT05300798T ATE393306T1 AT E393306 T1 ATE393306 T1 AT E393306T1 AT 05300798 T AT05300798 T AT 05300798T AT 05300798 T AT05300798 T AT 05300798T AT E393306 T1 ATE393306 T1 AT E393306T1
Authority
AT
Austria
Prior art keywords
combustion engine
internal combustion
injection valve
fuel spray
spray jets
Prior art date
Application number
AT05300798T
Other languages
German (de)
Inventor
Franck Levy
Eric Brun
Stephan Dehoux
Bertrand Fasolo
Original Assignee
Renault Sa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Renault Sa filed Critical Renault Sa
Application granted granted Critical
Publication of ATE393306T1 publication Critical patent/ATE393306T1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0696—W-piston bowl, i.e. the combustion space having a central projection pointing towards the cylinder head and the surrounding wall being inclined towards the cylinder wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0645—Details related to the fuel injector or the fuel spray
    • F02B23/066—Details related to the fuel injector or the fuel spray the injector being located substantially off-set from the cylinder centre axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0645—Details related to the fuel injector or the fuel spray
    • F02B23/0669—Details related to the fuel injector or the fuel spray having multiple fuel spray jets per injector nozzle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/14—Direct injection into combustion chamber
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

The engine has a cylinder head with a fuel injector (38) with a fuel injection nozzle (40) comprising a number of orifices (42). The orifices are realized in a manner that sum of length and arc of each fuel spray is equal to a constant, so that free length of each spray is identical. The engine has units to produce a swirl type turbulent flow at the intake. Distance between two intersection points of two adjacent fuel sprays is defined by the arc.
AT05300798T 2004-10-07 2005-10-06 INTERNAL COMBUSTION ENGINE WITH AN INJECTION VALVE WITH OPTIMIZED FUEL SPRAY JETS ATE393306T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0452296A FR2876421B1 (en) 2004-10-07 2004-10-07 INTERNAL COMBUSTION ENGINE COMPRISING AN OPTIMIZED JET FUEL INJECTOR

Publications (1)

Publication Number Publication Date
ATE393306T1 true ATE393306T1 (en) 2008-05-15

Family

ID=34952109

Family Applications (1)

Application Number Title Priority Date Filing Date
AT05300798T ATE393306T1 (en) 2004-10-07 2005-10-06 INTERNAL COMBUSTION ENGINE WITH AN INJECTION VALVE WITH OPTIMIZED FUEL SPRAY JETS

Country Status (5)

Country Link
EP (1) EP1645734B1 (en)
AT (1) ATE393306T1 (en)
DE (1) DE602005006212T2 (en)
ES (1) ES2302153T3 (en)
FR (1) FR2876421B1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102165178A (en) * 2008-09-24 2011-08-24 丰田自动车株式会社 Fuel injection valve for internal combustion engine and method of manufacturing the same
DE102009031789A1 (en) * 2009-07-06 2011-01-13 Volkswagen Ag Cylinder head for fuel injection system of e.g. petrol engine, has one recess provided for spark plug and another recess arranged in cylinder head, and longitudinal axis of latter recess and axis of cylinder include specific angle
DE102013219068A1 (en) * 2013-09-23 2015-03-26 Continental Automotive Gmbh Internal combustion engine
DE102019202073A1 (en) * 2019-02-15 2020-08-20 Robert Bosch Gmbh Method for producing an injection nozzle for injecting fuel into a combustion chamber of an internal combustion engine and nozzle arrangement with an injection nozzle

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3954089A (en) * 1971-07-16 1976-05-04 Deere & Company Diesel engine
DE4136851A1 (en) * 1991-11-08 1993-05-13 Avl Verbrennungskraft Messtech Low-powered diesel engine - has direct fuel injection using injection nozzle on same axis as cylinder together with combustion chamber hollow of hemispherical shape
FR2716495B1 (en) * 1994-02-22 1996-05-03 Peugeot Arrangements for improving the operation of direct injection diesel engines.
JPH10288131A (en) * 1997-04-11 1998-10-27 Yanmar Diesel Engine Co Ltd Injection nozzle of diesel engine
FR2844012B1 (en) * 2002-08-30 2006-04-07 Renault Sa COMBUSTION ENGINE COMPRISING DECAL INJECTION JETS FOLLOWING THE AXIS OF THE CYLINDER

Also Published As

Publication number Publication date
EP1645734A1 (en) 2006-04-12
DE602005006212D1 (en) 2008-06-05
EP1645734B1 (en) 2008-04-23
ES2302153T3 (en) 2008-07-01
DE602005006212T2 (en) 2009-06-18
FR2876421B1 (en) 2007-02-23
FR2876421A1 (en) 2006-04-14

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Legal Events

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